1.1 本试验方法包括通过空气驱动硅砂的冲击来测定混凝土的耐磨特性。它旨在作为发展知情判断的基础。 1.2 以国际单位制表示的数值应视为标准。括号中显示的英寸-磅单位仅供参考。 1.3 本标准的文本是指提供解释性材料的注释和脚注。这些注释和脚注（不包括表和图中的注释和脚注）不应视为本标准的要求。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 注1: 建议本试验方法的使用者，使用二氧化硅作为爆破介质存在已知的安全隐患。请咨询二氧化硅制造商MSDS，以确保遵守最新推荐的健康和安全做法。 注2: 除了使用空气驱动硅砂外，还可以使用其他程序测量混凝土表面的耐磨性。应考虑测试方法中概述的其他测试方法 C779/C779M , C944/C944M 和 C1138M . 应使用最能代表使用条件的试验方法。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 本试验方法涵盖了混凝土表面相对耐磨性的实验室评估。该程序模拟了水性磨料和交通条件下磨料在混凝土表面上的作用。 它执行切割动作，倾向于更严重地磨损混凝土抵抗力较低的部件。

1.1 This test method covers determination of the abrasion resistance characteristics of concrete by subjecting it to the impingement of air-driven silica sand. It is intended for use as a basis for the development of informed judgment. 1.2 The values stated in SI units are to be regarded as the standard. Inch-pound units are shown for information purposes in parentheses. 1.3 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Note 1: Users of this test method are advised that there are known safety hazards associated with the use of silica as a blasting media. Consult the silica manufactures MSDS to insure that the latest recommended health and safety practices are being followed. Note 2: Other procedures are available for measuring abrasion resistance of concrete surfaces in addition to subjecting it to air driven silica sand. Consideration should be given to other methods of testing as outlined in Test Methods C779/C779M , C944/C944M , and C1138M . The test method most closely representing service conditions should be used. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 This test method covers the laboratory evaluation of the relative resistance of concrete surfaces to abrasion. This procedure simulates the action of waterborne abrasives and abrasives under traffic on concrete surfaces. It performs a cutting action that tends to abrade more severely the less resistant components of the concrete.